EP0448617A1 - CONSTRUCTION PANEL. - Google Patents

CONSTRUCTION PANEL.

Info

Publication number
EP0448617A1
EP0448617A1 EP90900879A EP90900879A EP0448617A1 EP 0448617 A1 EP0448617 A1 EP 0448617A1 EP 90900879 A EP90900879 A EP 90900879A EP 90900879 A EP90900879 A EP 90900879A EP 0448617 A1 EP0448617 A1 EP 0448617A1
Authority
EP
European Patent Office
Prior art keywords
board
laminate board
laminate
panel
length
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90900879A
Other languages
German (de)
French (fr)
Other versions
EP0448617B1 (en
Inventor
Lars Heselius
Esko Brunila
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Paroc Group Oy AB
Original Assignee
Partek Oy AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8527589&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0448617(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Partek Oy AB filed Critical Partek Oy AB
Publication of EP0448617A1 publication Critical patent/EP0448617A1/en
Application granted granted Critical
Publication of EP0448617B1 publication Critical patent/EP0448617B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/292—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and sheet metal

Definitions

  • the invention relates to a construction board, in. particular to a longitudinal laminate board of binder fixed mineral wool, which is suitable as a core of a sandwich element having a surface layer, e.g. of sheet metal, on each side, consisting of adjacently disposed rods, the longitudinal direction of which coincide with the one of the laminate board and whose fibre plane form a right angle to the plane of the laminate board.
  • a surface layer e.g. of sheet metal
  • Laminate boards of this type are prior known, having been used for instance in shipbuilding industry as insulating walls of various spaces.
  • the sandwich element of mineral wool has been used to some extent within the shipbuilding industry. So far, however, longitudinal elements have not been available, neither as roof or floor elements, nor as wall elements.
  • the idea of rotating cut laminates 90o and of reassembling them in the turned position, thus obtaining a laminate board having fibres oriented perpendicularly to the plane of the board, is prior known.
  • Such a laminate board has excellent resistance properties and is able to transfer shearing forces between its surface planes.
  • the object of this invention is to provide long sandwich elements having a core consisting of fire, noise and heat insulating laminate boards for roof, floor and wall constructions.
  • the facts mentioned about the joint surface of the laminates are pertinent regardless of the joint surface being vertical to the surface layer of the laminate board or its being tilted, the joint surface being greater in the latter case than in the former.
  • the total surface of the joint surfaces must not exceed one third of the cross-sectional surface.
  • a laminate board with 9 laminates whereby the length a of the board may comprise three vertical joint surfaces, none of which is an inclined joint surface, which would result in a total joint surface that is greater than one third of the total cross-sectional surface.
  • a long construction board can be provided, of the size order of 9-10 m, by means of laminates rotated 90o and reassembled, without handling mineral wool mats and cut laminates of the corresponding length.
  • a board is obtained, which used as a core of a sandwich element has the same resistance properties as a board without joints, i.e. in which the weakening influence of the joints has been eliminated.
  • none of the joints is closer to an end of the laminate board than a.
  • maximally one joint is disposed within the range 2a from any end of the board.
  • maximally two joints are disposed within the distance 3a from any end of the board.
  • the distance a indicating the length of the critical area equals L : 2n. Since the support points, among others, have a certain extension, the length a has to be made somewhat longer, and thus the length L is appropriately divided by 1,9n.
  • the distance between joints of two adjacent rows of rods preferably equals at least the thickness of the rods in the laminate board, i.e. the thickness of the laminate board.
  • the rods are connected with a glue joint by applying glue to the end surfaces before connecting and fixing e.g. by drying subsequent to the forming of the laminate board.
  • the glue application is appropriately performed before the phase displacement of the rod flow.
  • the end surfaces of the rode are face milled or prepared so as to match the surfaces well, before a possible glue application.
  • the future lateral surfaces of the rods are face milled or prepared so that the rods will fit tightly to each other.
  • traces are made in the end faces of the rode, parallel to the plane of the laminate board or perpendicular to these, so as to provide a finger joint between the rods.
  • the rods are pressed together during the connecting moment at a pressure exceeding 100 Pa, preferably 500 Pa.
  • the mineral wool mat used as starting material consists of a bin der fixed mineral wool, which may be a rock wool or a glass wool forming essentially plane parallel layers consisting of vitreous fibres more or less in disorder.
  • a bin der fixed mineral wool which may be a rock wool or a glass wool forming essentially plane parallel layers consisting of vitreous fibres more or less in disorder.
  • the parametres a, L and n are used for determining the exact position for cutting off a long rod into a laminate of the laminate board and for phase displacing the long rod with regard to the preceding long rod in the board.
  • the parametres are used for programming a computer for automatic control of the cutting of the long rods.
  • joints 3 are relatively equally di ⁇ tributed over the laminate board and a comparison between the above parametres shows that all the criteria are being fulfilled.
  • the manufacture of the laminate board is carried out by assembling laterally rods cut from a mineral wool mat and rotated in order to form the laminate board.
  • the assembling of the rods that have been cut off and rotated can be accomplished in various manners.
  • the construction board of the invention is usable as supporting wall, floor or roof elements.
  • the board has good fire and heat insulating properties owing to its construction, and it is easy to install.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)
  • Vending Machines For Individual Products (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Luminescent Compositions (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Nonwoven Fabrics (AREA)
  • Panels For Use In Building Construction (AREA)

Abstract

L'invention concerne un panneau stratifié longitudinalement (1) en laine minérale fixée par un liant, qui convient pour former le noyau d'un élément sandwich ayant des surfaces externes, constituées par exemple, de minces plaques métalliques. Le panneau stratifié est constitué de barres disposées de façon adjacente et en direction de la longueur (2) dont le plan des fibres présente un angle droit par rapport au plan du panneau stratifié. Les barres sont plus courtes que ledit panneau et sont jointes bout à bout. Les liaisons sont réparties dans le panneau stratifié de manière à éliminer leur effet d'affaiblissement sur la résistance du panneau. Les surfaces totales de liaison des stratifiés constituent, dans une intervalle (a) du panneau, où (a) dépend de la longueur du panneau et du nombre de stratifiés contenu sur la longueur, au maximum un tiers de la section du panneau. Quant aux zones de longueur (a) près des faces d'extrémité et près des lignes de support des panneaux à champs multiples, moins de liaisons sont nécessaires par rapport aux zones interposées.The invention relates to a longitudinally laminated panel (1) of mineral wool fixed by a binder, which is suitable for forming the core of a sandwich element having external surfaces, consisting for example of thin metal plates. The laminate panel consists of bars arranged adjacent and lengthwise (2) whose fiber plane has a right angle to the plane of the laminate panel. The bars are shorter than said panel and are joined end to end. The bonds are distributed in the laminated panel in such a way as to eliminate their weakening effect on the strength of the panel. The total bonding surfaces of the laminates constitute, in an interval (a) of the panel, where (a) depends on the length of the panel and the number of laminates contained along the length, at most one third of the section of the panel. As for the zones of length (a) near the end faces and near the support lines of the multi-field panels, fewer bonds are required compared to the interposed zones.

Description

Construction board
The invention relates to a construction board, in. particular to a longitudinal laminate board of binder fixed mineral wool, which is suitable as a core of a sandwich element having a surface layer, e.g. of sheet metal, on each side, consisting of adjacently disposed rods, the longitudinal direction of which coincide with the one of the laminate board and whose fibre plane form a right angle to the plane of the laminate board.
Laminate boards of this type are prior known, having been used for instance in shipbuilding industry as insulating walls of various spaces.
The sandwich element of mineral wool has been used to some extent within the shipbuilding industry. So far, however, longitudinal elements have not been available, neither as roof or floor elements, nor as wall elements. The idea of rotating cut laminates 90º and of reassembling them in the turned position, thus obtaining a laminate board having fibres oriented perpendicularly to the plane of the board, is prior known. Such a laminate board has excellent resistance properties and is able to transfer shearing forces between its surface planes.
Finished sandwich elements of mineral wool with the fibres oriented perpendicularly to the surface plane of the element would be usable as supporting roof, floor and wall elements, thus simplifying construction operations noticeably. The object of this invention is to provide long sandwich elements having a core consisting of fire, noise and heat insulating laminate boards for roof, floor and wall constructions.
According to the invention, this object has been achieved by composing the laminate board of rods that are shorter than the laminate board and by letting aligned rods coincide without intervale so as to form a joint, whereby the total joint surfaces of the laminates within one interval of the length a somwehere along the length of the laminate board form maximally one third of the cross-sectional surface of the board, in which a = L : 1,90n and L = the length of the laminate board, when the board is used as a one-field construction with support points at the ends, and L = the span, when the board is used as a multi-field-constuction with one or more supporting points between the ends, and n = the number of laminates in the width of the laminate board.
The facts mentioned about the joint surface of the laminates are pertinent regardless of the joint surface being vertical to the surface layer of the laminate board or its being tilted, the joint surface being greater in the latter case than in the former. The total surface of the joint surfaces must not exceed one third of the cross-sectional surface. As an example one can mention a laminate board with 9 laminates, whereby the length a of the board may comprise three vertical joint surfaces, none of which is an inclined joint surface, which would result in a total joint surface that is greater than one third of the total cross-sectional surface.
According to the invention, a long construction board can be provided, of the size order of 9-10 m, by means of laminates rotated 90º and reassembled, without handling mineral wool mats and cut laminates of the corresponding length. By distributing the joints between the various aligned rode appro priately over the surface of the laminate board, a board is obtained, which used as a core of a sandwich element has the same resistance properties as a board without joints, i.e. in which the weakening influence of the joints has been eliminated.
According to a preferred embodiment of the laminate board of the invention, none of the joints is closer to an end of the laminate board than a.
According to another preferred embodiment of the board, maximally one joint is disposed within the range 2a from any end of the board. According to a further development of the invention, maximally two joints are disposed within the distance 3a from any end of the board.
The facts mentioned above about the existence of joints at the ends of the laminate board, is also true about the areas on each side of intermediate supports of a multi-field construction. A force concentration namely arises at intermediate supports like at the end supports. These critical areas must not contain as many joints as interposed areas. The conclusion is valid for elements in a horizontal position as well as for elements in a vertical position.
As a general rule, the distance a indicating the length of the critical area, equals L : 2n. Since the support points, among others, have a certain extension, the length a has to be made somewhat longer, and thus the length L is appropriately divided by 1,9n.
Further, the distance between joints of two adjacent rows of rods preferably equals at least the thickness of the rods in the laminate board, i.e. the thickness of the laminate board. According to a preferred embodiment of the process, the rods are connected with a glue joint by applying glue to the end surfaces before connecting and fixing e.g. by drying subsequent to the forming of the laminate board. The glue application is appropriately performed before the phase displacement of the rod flow.
According to another preferred embodiment of the process, the end surfaces of the rode are face milled or prepared so as to match the surfaces well, before a possible glue application.
According to another preferred embodiment, the future lateral surfaces of the rods are face milled or prepared so that the rods will fit tightly to each other.
According to another embodiment, traces are made in the end faces of the rode, parallel to the plane of the laminate board or perpendicular to these, so as to provide a finger joint between the rods.
According to a further embodiment, the rods are pressed together during the connecting moment at a pressure exceeding 100 Pa, preferably 500 Pa.
The mineral wool mat used as starting material consists of a bin der fixed mineral wool, which may be a rock wool or a glass wool forming essentially plane parallel layers consisting of vitreous fibres more or less in disorder. By rotating the rods cut from the mat, rods having vertically oriented fibres are obtained, which is valuable for the resistance requirements of the laminate board when used as a construction element. This fibre orientation, allowing shearing forces to be transferred between the surface planes of the board, enables the use of very long boards, of the size order of 9-10 m, for constuction purposes. the joints is eliminated. This relation is obtained by fulfilling the conditions defined in the claims with regard to the parametres a, L and n.
The parametres a, L and n are used for determining the exact position for cutting off a long rod into a laminate of the laminate board and for phase displacing the long rod with regard to the preceding long rod in the board. The parametres are used for programming a computer for automatic control of the cutting of the long rods.
A preferred embodiment of the laminate board according to the invention is described below with reference to the enclosed figure.
The laminate board iβ indicated by 1, the rode by 2 and the joint between the rods forming the laminates of the laminate board by 3. In the rode 2 forming the outmost laminate, the vertical orientation of the fibre planes is indicated.
It can be noted that the the joints 3 are relatively equally diβtributed over the laminate board and a comparison between the above parametres shows that all the criteria are being fulfilled.
As described in our parallel application mentioned above, the manufacture of the laminate board is carried out by assembling laterally rods cut from a mineral wool mat and rotated in order to form the laminate board. The assembling of the rods that have been cut off and rotated can be accomplished in various manners.
In a preferred manner, the rode are assembled consecutively into a long rod, in which rode having the desired length <=the length of the laminate board) are cut and assembled into a laminate board.
In another preferred manner, several rods are cut from the mineral wool sheet and rotated and subsequently phase displaced axially. The phase displaced rods are subsequently assembled with end faces against each other with the preceding flow of correspondingly cut and phase displaced rode into a flow of long rods, in which a length equalling the one of the laminate board is cut off. After that, the two surface layers are applied onto the laminate board.
Provided with surface layers, which can be of thin sheet metal, a concrete layer, minerite or similar, the construction board of the invention is usable as supporting wall, floor or roof elements. The board has good fire and heat insulating properties owing to its construction, and it is easy to install.

Claims

Claims
1. A longitudinal laminate board (1) of binder fixed mineral wool, suitable as a core of a sandwich element having a surface layer, e.g. of sheet metal, on each side, consisting of adjacently disposed rods (2) the longitudinal direction of which coincide with the one of the laminate board and in which the fibre plane forms a right angle to the plane of the laminate board, characterized in that the laminate board (1) is composed of rods (2) that are shorter than the laminate board and in that the aligned rods are in contact with each other without intervals, thus forming a joint (3), whereby the toal joint surfaces of the laminates within one interval of the length a somewhere along the length of the laminate board form maximally one third of the cross-sectional surface of the board, in which a = L : l,90n and L = the length of the laminate board, when the board is being used as a one-field board, and L = the span, when the board is being used as a multi-field board, and n = the number of laminates in the width of the laminate board.
2. A laminate board according to claim 1, characterized in that no joint (3) is disposed closer to an end of the laminate board (1) or a support line of a multi-field board than a.
3. A laminate board according to claim 1 or 2, characterized in that maximally one joint (3) is diposed within the distance 2a from the end of the laminate board (1) or a support line of a multi-field board.
4. A laminate board according to any of claims 1-3,
characterized in that maximally two joints (3) are within the distance 3a from the end of the laminate board (1) or a support line of a multi-field board.
5. A laminate board according to any of claims 1-4,
characterized in that the distance between the joints (3) of two adjacent longitudinal rods is at least equal to the thickness of the laminate board (1).
6. A laminate board according to any of claims 1-5,
characterized in that the end faces of each joint (3) are pressed against each other forming a border layer, in which fibres from both the rode (2) are included.
7. A laminate board according to any of claims 1-6, characterized in that the end faces are glued against each other.
8. A laminate board according to any of claims 1-7, characterized in that the fibres planes are essentially parallel to the axes of the rode (2).
EP90900879A 1988-12-16 1989-12-15 Construction board Expired - Lifetime EP0448617B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI885848A FI82518B (en) 1988-12-16 1988-12-16 LAONGSTRAECKT LAMELLSKIVA AV MINERALULL, LAEMPLIG SOM KAERNA I ETT SANDWICHELEMENT.
FI885848 1988-12-16
PCT/FI1989/000234 WO1990007039A1 (en) 1988-12-16 1989-12-15 Construction board

Publications (2)

Publication Number Publication Date
EP0448617A1 true EP0448617A1 (en) 1991-10-02
EP0448617B1 EP0448617B1 (en) 1995-03-29

Family

ID=8527589

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90900879A Expired - Lifetime EP0448617B1 (en) 1988-12-16 1989-12-15 Construction board

Country Status (8)

Country Link
EP (1) EP0448617B1 (en)
AT (1) ATE120510T1 (en)
CA (1) CA2005501A1 (en)
DE (1) DE68921991T2 (en)
DK (1) DK167544B1 (en)
ES (1) ES2073014T3 (en)
FI (1) FI82518B (en)
WO (1) WO1990007039A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5262217A (en) * 1989-05-04 1993-11-16 Hunter Douglas International N.V. Core arrangement in mineral wool sandwich panel
FI86160C (en) * 1990-09-04 1993-03-31 Partek Ab Process for manufacturing sandwich elements consisting of a core of mineral wool slats and surface layers, for example of sheet metal and a device for carrying out the method
IT1266174B1 (en) * 1994-07-18 1996-12-23 Isolpack Ceria Spa INSULATING PANEL FOR BUILDING
RU2270902C1 (en) * 2004-11-15 2006-02-27 Закрытое акционерное общество "Мосстрой-31" (ЗАО "Мосстрой-31") Sandwich panel

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE368949B (en) * 1972-02-17 1974-07-29 Rockwool Ab
SE385389B (en) * 1974-06-24 1976-06-28 Rockwool Ab COMPOSED OF PRECIOUS RULES AND BETWEEN INSERTED, HEAT INSULATION PANELS EXISTING TRANSACTION CONSTRUCTION

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9007039A1 *

Also Published As

Publication number Publication date
DK167544B1 (en) 1993-11-15
FI885848A7 (en) 1990-06-17
CA2005501A1 (en) 1990-06-16
FI885848A0 (en) 1988-12-16
EP0448617B1 (en) 1995-03-29
FI82518B (en) 1990-11-30
DE68921991T2 (en) 1995-08-03
WO1990007039A1 (en) 1990-06-28
DE68921991D1 (en) 1995-05-04
DK114691A (en) 1991-08-14
ES2073014T3 (en) 1995-08-01
ATE120510T1 (en) 1995-04-15
DK114691D0 (en) 1991-06-14

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